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Fix rotated & offset pad thermal spoke geometry.

This commit is contained in:
Jeff Young 2019-06-26 00:04:35 +01:00
parent a39023ad22
commit 00cf8ba976
1 changed files with 32 additions and 30 deletions
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42
pcbnew/zone_filler.cpp
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@ -75,7 +75,7 @@ private:
};
static double s_thermalRot = 450; // angle of stubs in thermal reliefs for round pads
static const double s_RoundPadThermalSpokeAngle = 450;
static const bool s_DumpZonesWhenFilling = false;
@ -842,52 +842,57 @@ void ZONE_FILLER::buildThermalSpokes( const ZONE_CONTAINER* aZone,
// Thermal spokes consist of segments from the pad center to points just outside
// the thermal relief.
//
// We use the bounding-box to lay out the spokes, but for this to work the
// bounding box has to be built at the same rotation as the spokes.
wxPoint shapePos = pad->ShapePos();
wxPoint padPos = pad->GetPosition();
double padAngle = pad->GetOrientation();
double spokeAngle = padAngle;
pad->SetOrientation( 0.0 );
pad->SetPosition( - pad->GetOffset() );
pad->SetPosition( { 0, 0 } );
BOX2I reliefBB = pad->GetBoundingBox();
pad->SetPosition( padPos );
pad->SetOrientation( padAngle );
reliefBB.Inflate( thermalReliefGap + epsilon );
// For circle pads, the thermal stubs orientation is 45 deg
// For circle pads, the thermal spoke orientation is 45 deg
if( pad->GetShape() == PAD_SHAPE_CIRCLE )
spokeAngle = s_thermalRot;
padAngle = s_RoundPadThermalSpokeAngle;
for( int i = 0; i < 4; i++ )
{
SHAPE_LINE_CHAIN spoke;
// polygons are rectangles with width of copper bridge value
switch( i )
{
case 0: // lower stub
spoke.Append( +spoke_half_w, 0 );
spoke.Append( -spoke_half_w, 0 );
spoke.Append( +spoke_half_w, -spoke_half_w );
spoke.Append( -spoke_half_w, -spoke_half_w );
spoke.Append( -spoke_half_w, reliefBB.GetBottom() );
spoke.Append( 0, reliefBB.GetBottom() ); // test pt
spoke.Append( +spoke_half_w, reliefBB.GetBottom() );
break;
case 1: // upper stub
spoke.Append( +spoke_half_w, 0 );
spoke.Append( -spoke_half_w, 0 );
spoke.Append( +spoke_half_w, spoke_half_w );
spoke.Append( -spoke_half_w, spoke_half_w );
spoke.Append( -spoke_half_w, reliefBB.GetTop() );
spoke.Append( 0, reliefBB.GetTop() ); // test pt
spoke.Append( +spoke_half_w, reliefBB.GetTop() );
break;
case 2: // right stub
spoke.Append( 0, spoke_half_w );
spoke.Append( 0, -spoke_half_w );
spoke.Append( -spoke_half_w, spoke_half_w );
spoke.Append( -spoke_half_w, -spoke_half_w );
spoke.Append( reliefBB.GetRight(), -spoke_half_w );
spoke.Append( reliefBB.GetRight(), 0 ); // test pt
spoke.Append( reliefBB.GetRight(), spoke_half_w );
break;
case 3: // left stub
spoke.Append( 0, spoke_half_w );
spoke.Append( 0, -spoke_half_w );
spoke.Append( spoke_half_w, spoke_half_w );
spoke.Append( spoke_half_w, -spoke_half_w );
spoke.Append( reliefBB.GetLeft(), -spoke_half_w );
spoke.Append( reliefBB.GetLeft(), 0 ); // test pt
spoke.Append( reliefBB.GetLeft(), spoke_half_w );
@ -896,16 +901,13 @@ void ZONE_FILLER::buildThermalSpokes( const ZONE_CONTAINER* aZone,
for( int j = 0; j < spoke.PointCount(); j++ )
{
RotatePoint( spoke.Point( j ), spokeAngle );
spoke.Point( j ) += padPos + pad->GetOffset();
RotatePoint( spoke.Point( j ), padAngle );
spoke.Point( j ) += shapePos;
}
spoke.SetClosed( true );
aSpokesList.push_back( std::move( spoke ) );
}
pad->SetPosition( padPos );
pad->SetOrientation( padAngle );
}
}
}